Home forum Antibody classes Home › Forums › Laboratory LOINC › Lab LOINC Content Areas › Microbiology › Antibody classes This topic contains 0 replies, has 1 voice, and was last updated by Vladimir Choi 3 years, 4 months ago. Viewing 1 post (of 1 total) Author Posts 2016-04-06 at 02:13 #17385 Vladimir ChoiParticipant Hi, Does “Ab” automatically include all antibody classes (IgG, IgA, IgM, IgD, IgE)? Or can it substitute for any class? What if you want IgM+IgG but there is no LOINC code? Can you use the more generic “Ab” code? Thanks Author Posts Viewing 1 post (of 1 total) You must be logged in to reply to this topic.